CN209217711U - A kind of lightning protection circuit and power supply adaptor - Google Patents
A kind of lightning protection circuit and power supply adaptor Download PDFInfo
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- CN209217711U CN209217711U CN201821830144.XU CN201821830144U CN209217711U CN 209217711 U CN209217711 U CN 209217711U CN 201821830144 U CN201821830144 U CN 201821830144U CN 209217711 U CN209217711 U CN 209217711U
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Abstract
The utility model embodiment provides a kind of lightning protection circuit, including fuse, varistor and lightning protection component；The fuse, the varistor and the lightning protection component are sequentially connected；Or, the fuse, the lightning protection component and the varistor are sequentially connected；Or, the varistor, the fuse and the lightning protection component are sequentially connected；The varistor and the lightning protection component are used to when the lightning protection circuit and protected late-class circuit are by lightning wave impulse, release thunder and lightning momentary excess current and over-voltage；The varistor is also used to cut off the power frequency continued flow of the lightning protection component after lightning protection component absorbs lightning surge voltage；The lightning protection component is also used to blow when the varistor ageing failure, cuts off the varistor of ageing failure from the lightning protection circuit；It can avoid the phenomenon that causing circuit to burn because of varistor ageing failure.
Description
Technical field
The utility model relates to anti-thunder technical field more particularly to a kind of lightning protection circuits and power supply adaptor.
Background technique
With the development of electronic technology, communication apparatus is more and more accurate, and the requirement of working environment also can be higher and higher, but
The transient overvoltage as caused by lightning stroke can be further frequently electrical by the intrusion of the routes such as power supply, radio signal transceiver
Equipment and the network equipment cause equipment or component damage, and transmission or the data stored are interfered or lose, or even make electronics
Equipment generates malfunction or temporarily paralysis, system-down, and data-transmission interruptions, local area network or even wide area network are destroyed.To keep away
It is such caused by exempting from because of lightning stroke to happen, it is necessary to take effective Lighting Protection Measures.
A big chunk lightning protection circuit is lightning protection function to be realized by varistor, but the method exists at present
Certain hidden danger: after varistor is subjected to the lightning impulse of certain number, it may appear that the phenomenon that ageing failure, varistor is old
Low resistance state can be presented after changing failure, since varistor is connected across city's electrical zero and firewire both ends, heat can be accumulated, there is hair
Heat, the risk of catching fire, for the electrical equipment that city is electrically accessed, especially civilian power supply adaptor, varistor is on fire
The risk of burning should not be underestimated.Household electrical equipment also occurs often on the market at present leads to entire electricity because of varistor aging
The accident of source burning, threatens to user's personal safety and property.
Utility model content
The purpose of the utility model embodiment is to provide a kind of lightning protection circuit and power supply adaptor, can be by thunder and lightning
When impact, effectively release thunder and lightning momentary excess current and over-voltage, thus the accidents such as equipment damage caused by avoiding because of lightning stroke,
It can effectively solve the phenomenon that existing lightning protection circuit leads to catching fire because of varistor ageing failure.
To achieve the above object, the utility model embodiment provides a kind of lightning protection circuit, including fuse, pressure-sensitive
Resistance and lightning protection component；
The fuse, the varistor and the lightning protection component are sequentially connected；Or, the fuse, described anti-
Thunder component and the varistor are sequentially connected；Or, the varistor, the fuse and the lightning protection component are successively
Connection；
The varistor and the lightning protection component are used to when the lightning protection circuit and protected rear class electricity
When road is by lightning wave impulse, release thunder and lightning momentary excess current and over-voltage；
The varistor is also used to cut off the lightning protection member device after lightning protection component absorbs lightning surge voltage
The power frequency continued flow of part；
The lightning protection component is also used to blow when the varistor ageing failure, makes the varistor of ageing failure
It is cut off from the lightning protection circuit；
The fuse is used to fuse when the electric current of the lightning protection circuit is more than predetermined value, to cut off electric current.
Compared with prior art, the utility model embodiment provides a kind of lightning protection circuit, by by the insurance
Silk, the varistor and the lightning protection component are sequentially connected；Or, the fuse, the lightning protection component and the pressure
Quick resistance is sequentially connected；Or, the varistor, the fuse and the lightning protection component are sequentially connected；When the lightning protection
When protecting circuit and protected late-class circuit by lightning wave impulse, the varistor and the lightning protection component are released thunder and lightning
Momentary excess current and over-voltage；After the lightning protection component absorbs lightning surge voltage, the varistor cuts off institute
The power frequency continued flow for stating lightning protection component, plays the role of blocking；When the varistor ageing failure, the lightning protection component
It blows, cuts off the varistor of ageing failure from the lightning protection circuit；When the electric current of the lightning protection circuit is super
Blown fuse when predetermined value is crossed, to cut off electric current；Then when by lightning impulse, the thunder and lightning that can effectively release is instantaneous excessively electric
Stream and over-voltage, thus the accidents such as equipment damage caused by avoiding because of lightning stroke, moreover it is possible to effectively solve existing lightning protection electricity
The phenomenon that road leads to catching fire because of varistor ageing failure.
As an improvement of the above scheme, the varistor includes the first varistor, the second varistor and third pressure
Quick resistance；
The lightning protection component includes the first lightning protection component, the second lightning protection component and third lightning protection component；
One end of the fuse is connect with the input terminal of the lightning protection circuit, and the one of the first lightning protection component
End is connect with the other end of the fuse, one end of the other end of the first lightning protection component and first varistor
Connection, the other end of first varistor are connect with one end of the second lightning protection component, the second lightning protection member device
The other end of part is connect with the input terminal of the lightning protection circuit；
One end of second varistor is connect with the input terminal of the lightning protection circuit, second varistor
The other end connect with one end of the second lightning protection component, the other end of the second lightning protection component and the lightning protection are protected
The input terminal of protection circuit connects；
One end of the third varistor is connect with the other end of the fuse, the third lightning protection component it is another
One end is connect with one end of the third varistor, the other end and the lightning protection circuit of the third lightning protection component
Input terminal connection.
As an improvement of the above scheme, the lightning protection component is gas-discharge tube.
As an improvement of the above scheme, the lightning protection component is Thermal Cutoffs.
As an improvement of the above scheme, the Thermal Cutoffs be packaged in protected varistor shell it is outer and with institute
Shell is stated to fit closely.
The utility model embodiment also correspondence provides a kind of power supply adaptor, including prevents as described in above-mentioned any embodiment
Thunder protects circuit and AC-DC conversion module；
The lightning protection circuit input terminal is electrically connected with city, the output end of the lightning protection circuit and the AC-DC
The input terminal of conversion module connects, and the output end of the AC-DC conversion module is connect with load equipment；
The lightning protection circuit is used for when lightning wave inputs the power supply adaptor, and limitation inputs the AC-DC and turns
Change the mold the alternating current voltage of block；
The AC-DC conversion module is used to be converted in the alternating current of input direct current and the output of predeterminated voltage.
Compared with prior art, the utility model embodiment provides a kind of power supply adaptor, by protecting the lightning protection
Protection circuit input terminal is electrically connected with city, to access the alternating current of power supply system output；And when lightning wave inputs the power adaptation
When device, limitation inputs the alternating current voltage of the AC-DC conversion module；By by the output end of the AC-DC conversion module with
The alternating current of input is converted to the direct current of predeterminated voltage and exported to load equipment by load equipment connection, can be alternating current
AC high voltage is converted into low voltage DC electricity by the rectification of the power supply adaptor, transformation, and when by lightning impulse, energy
Effective release thunder and lightning momentary excess current and over-voltage, thus the accidents such as equipment damage caused by avoiding because of lightning stroke, moreover it is possible to have
Effect solves the phenomenon that leading to catching fire because of varistor ageing failure.
As an improvement of the above scheme, the AC-DC conversion module includes AC-DC rectification circuit and with isolating transformer
DC-DC reduction voltage circuit；
The output end of the lightning protection circuit is connect with the input terminal of the AC-DC rectification circuit, the AC-DC rectification
The output end of circuit is connect with the input terminal of the DC-DC reduction voltage circuit with isolating transformer；
The AC-DC rectification circuit exports high voltage direct current to the band for converting to the alternating current of input
The DC-DC reduction voltage circuit of isolating transformer；
The DC-DC reduction voltage circuit with isolating transformer exports pre- for converting to the high voltage direct current
If the low-voltage DC of voltage.
As an improvement of the above scheme, the AC-DC conversion module further includes output voltage controlling circuit；
The output end of the input terminal of the output voltage controlling circuit and the DC-DC reduction voltage circuit with isolating transformer
Connection；
The output voltage controlling circuit is used for when fluctuation occurs for the DC voltage of input or load changes, will
The voltage stabilization of the low-voltage DC is preset value and exports.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of lightning protection circuit 10 in the utility model embodiment 1.
Fig. 2 is a kind of structural schematic diagram of lightning protection circuit 20 in the utility model embodiment 3.
Fig. 3 is a kind of structural schematic diagram of power supply adaptor 30 in the utility model embodiment 4.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is described anti-for a kind of structural schematic diagram for lightning protection circuit that the utility model embodiment 1 provides referring to Fig. 1
It includes fuse 11, varistor 12 and lightning protection component 13 that thunder, which protects circuit 10,；
The fuse 11, the varistor 12 and the lightning protection component 13 are sequentially connected；Or, the fuse
11, the lightning protection component 13 and the varistor 12 are sequentially connected；Or, the varistor 12, the fuse and 11
The lightning protection component 13 is sequentially connected；
The varistor 12 and the lightning protection component 13 are used to when the lightning protection circuit 10 and protected
When late-class circuit is by lightning wave impulse, release thunder and lightning momentary excess current and over-voltage；
The varistor 12 is also used to cut off the lightning protection after lightning protection component 13 absorbs lightning surge voltage
The power frequency continued flow of component 13；
The lightning protection component 13 is also used to blow when 12 ageing failure of varistor, makes the pressure-sensitive of ageing failure
Resistance 12 is cut off from the lightning protection circuit 10；
The fuse 11 is used to fuse when the electric current of the lightning protection circuit 10 is more than predetermined value, to cut off electricity
Stream.
Based on above structure, the fuse 11, the varistor 12 and the lightning protection component 13 are sequentially connected；
Or, the fuse 11, the lightning protection component 13 and the varistor 12 are sequentially connected；Or, the varistor 12, institute
It states fuse and the 11 lightning protection components 13 is sequentially connected；It is described when the lightning protection circuit 10 is by lightning wave impulse
Varistor 12 and the lightning protection component 13 are released thunder and lightning momentary excess current and over-voltage；When the lightning protection component 13
After absorbing lightning surge voltage, the varistor 12 cuts off the power frequency continued flow of the lightning protection component 13, plays the work of blocking
With；When 12 ageing failure of varistor, the lightning protection component 13 is blown, and makes the varistor 12 of ageing failure from institute
It states and is cut off on lightning protection circuit 10；When the electric current of the lightning protection circuit 10 is more than predetermined value, the fuse 11 is molten
It is disconnected, to cut off electric current；Then when by lightning impulse, can effectively release thunder and lightning momentary excess current and over-voltage, to keep away
The accidents such as equipment damage caused by exempting from because of lightning stroke, moreover it is possible to effectively solve existing lightning protection circuit 10 because 12 aging of varistor is lost
The phenomenon that effect leads to catching fire.
A kind of preferred embodiment for lightning protection circuit that the present embodiment 2 provides on the basis of embodiment 1, the pressure
Quick resistance 12 includes the first varistor RV1, the second varistor RV2 and third varistor RV3；
The lightning protection component 13 includes the first lightning protection component 21, the second lightning protection component 22 and third lightning protection component
23；
One end of the fuse 11 is connect with the input terminal of the lightning protection circuit, the first lightning protection component 21
One end connect with the other end of the fuse 11, the other end of the first lightning protection component 21 and the described first pressure-sensitive electricity
One end connection of RV1 is hindered, the other end of the first varistor RV1 is connect with one end of the second lightning protection component 22,
The other end of the second lightning protection component 22 is connect with the input terminal of the lightning protection circuit；
One end of the second varistor RV2 is connect with the input terminal of the lightning protection circuit, and described second is pressure-sensitive
The other end of resistance RV2 is connect with one end of the second lightning protection component 22, the other end of the second lightning protection component 22
It is connect with the input terminal of the lightning protection circuit；
One end of the third varistor RV3 is connect with the other end of the fuse 11, the third lightning protection member device
The other end of part 23 is connect with one end of the third varistor RV3, the other end of the third lightning protection component 23 and institute
State the input terminal connection of lightning protection circuit.
It should be understood that one end of the fuse 11 is connect with the firewire of the lightning protection circuit input terminal, it is described
The other end of second lightning protection component 22 is connect with the ground wire of the lightning protection circuit input terminal, second varistor
One end of RV2 is connect with the zero curve of the lightning protection circuit input terminal, and the other end of third lightning protection component 23 is prevented with described
Thunder protects the zero curve connection of circuit input end.
Preferably, the first lightning protection component 21, the second lightning protection component 22 and the third lightning protection component
23 be Thermal Cutoffs.
Preferably, when the lightning protection component is Thermal Cutoffs, the Thermal Cutoffs is packaged in protected
The shell of varistor is outer and fits closely with the shell.
It referring to fig. 2, is a kind of structural schematic diagram for lightning protection circuit that the utility model embodiment 3 provides another excellent
It selects in embodiment, on the basis of embodiment 2, the first lightning protection component 21, the second lightning protection component 22 and described
Third lightning protection component 23 is gas-discharge tube, i.e., the described first lightning protection component 21 is first gas discharge tube FDG1, institute
Stating the second lightning protection component 22 is second gas discharge tube FDG2, and the third lightning protection component 23 is third gas discharge tube
FDG3。
It should be understood that one end of the fuse 11 is connect with the firewire of the lightning protection circuit input terminal, it is described
The other end of second gas discharge tube FDG2 is connect with the ground wire of the lightning protection circuit input terminal, second varistor
One end of RV2 is connect with the zero curve of the lightning protection circuit input terminal, the other end of third gas discharge tube FDG3 with it is described
The zero curve of lightning protection circuit input terminal connects.
It is described for a kind of structural schematic diagram of the power supply adaptor 30 provided in the utility model embodiment 4 referring to Fig. 3
Power supply adaptor 30 includes the lightning protection circuit 31 and AC-DC conversion module 32 as described in above-mentioned any embodiment；
The input terminal of the lightning protection circuit 31 is electrically connected with city, the output end of the lightning protection circuit 31 with it is described
The input terminal of AC-DC conversion module 32 connects, and the output end of the AC-DC conversion module 32 is connect with load equipment；
The lightning protection circuit 31 is used for when lightning wave inputs the power supply adaptor 30, and limitation inputs the AC-
The alternating current voltage of DC conversion module 32；
The AC-DC conversion module 32 is used to be converted in the alternating current of input direct current and the output of predeterminated voltage.
Based on above structure, by the way that the input terminal of the lightning protection circuit 31 to be electrically connected with city, with access power supply system
The alternating current of system output；By by the input terminal of the output end of the lightning protection circuit 31 and the AC-DC conversion module 32
Connection, with when lightning wave inputs the power supply adaptor 30, limitation inputs the alternating current electricity of the AC-DC conversion module 32
Pressure；By the way that the output end of the AC-DC conversion module 32 to be connect with load equipment, the alternating current of input is converted to default
The direct current of voltage is simultaneously exported to load equipment, can alternating current AC high voltage, by the rectification of the power supply adaptor, transformation,
It is converted into low voltage DC electricity, and when by lightning impulse, can effectively release thunder and lightning momentary excess current and over-voltage, thus
The accidents such as equipment damage caused by avoiding because of lightning stroke, moreover it is possible to effectively solve to lead to showing for catching fire because of varistor ageing failure
As.
Preferably, the AC-DC conversion module 32 includes AC-DC rectification circuit 321 and the DC-DC drop with isolating transformer
Volt circuit 322；
The output end of the lightning protection circuit 31 is connect with the input terminal of the AC-DC rectification circuit 321, described
The output end of AC-DC rectification circuit 321 is connect with the input terminal of the DC-DC reduction voltage circuit 322 with isolating transformer；
The AC-DC rectification circuit 321 exports high voltage direct current to described for converting to the alternating current of input
DC-DC reduction voltage circuit 322 with isolating transformer；
The DC-DC reduction voltage circuit 322 with isolating transformer is exported for converting to the high voltage direct current
The low-voltage DC of predeterminated voltage.
Preferably, the AC-DC conversion module 32 further includes output voltage controlling circuit 323；
The input terminal of the output voltage controlling circuit 323 and the DC-DC reduction voltage circuit 322 with isolating transformer
Output end connection；
The output voltage controlling circuit 323 is used to that fluctuation to occur when the DC voltage of input or load changes
When, it is preset value by the voltage stabilization of the low-voltage DC and exports.
To sum up, the utility model embodiment provides a kind of lightning protection circuit 10, the fuse 11, the pressure-sensitive electricity
Resistance 12 and the lightning protection component 13 are sequentially connected；Or, the fuse 11, the lightning protection component 13 and the varistor
12 are sequentially connected；Or, the varistor 12, the fuse and the 11 lightning protection components 13 are sequentially connected；When described anti-
When thunder protects circuit 11 by lightning wave impulse, the varistor 12 and the lightning protection component 13 are released thunder and lightning momentary excess current
And over-voltage；After the lightning protection component 13 absorbs lightning surge voltage, the varistor 12 cuts off the lightning protection
The power frequency continued flow of component 13, plays the role of blocking；When 12 ageing failure of varistor, the lightning protection component 13
It blows, cuts off the varistor 12 of ageing failure from the lightning protection circuit；When the electricity of the lightning protection circuit 10
Stream fusing of fuse 11 when being more than predetermined value, to cut off electric current；Based on above-mentioned lightning protection circuit 10, the utility model is another
One embodiment additionally provides a kind of power supply adaptor 30, then when by lightning impulse, passes through 31 energy of lightning protection circuit
Effective release thunder and lightning momentary excess current and over-voltage, thus the accidents such as equipment damage caused by avoiding because of lightning stroke, moreover it is possible to have
Effect solves the phenomenon that leading to catching fire because of varistor ageing failure.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (8)
1. a kind of lightning protection circuit, which is characterized in that including fuse, varistor and lightning protection component；
The fuse, the varistor and the lightning protection component are sequentially connected；Or, the fuse, lightning protection member
Device and the varistor are sequentially connected；Or, the varistor, the fuse and the lightning protection component successively connect
It connects；
The varistor and the lightning protection component be used to when the lightning protection circuit and protected late-class circuit by
When lightning wave impulse, release thunder and lightning momentary excess current and over-voltage；
The varistor is also used to cut off the lightning protection component after lightning protection component absorbs lightning surge voltage
Power frequency continued flow；
The lightning protection component is also used to blow when the varistor ageing failure, makes the varistor of ageing failure from institute
It states and is cut off on lightning protection circuit；
The fuse is used to fuse when the electric current of the lightning protection circuit is more than predetermined value, to cut off electric current.
2. lightning protection circuit as described in claim 1, which is characterized in that the varistor include the first varistor,
Second varistor and third varistor；
The lightning protection component includes the first lightning protection component, the second lightning protection component and third lightning protection component；
One end of the fuse is connect with the input terminal of the lightning protection circuit, one end of the first lightning protection component with
The other end of the fuse connects, and one end of the other end of the first lightning protection component and first varistor connects
It connects, the other end of first varistor is connect with one end of the second lightning protection component, the second lightning protection component
The other end connect with the input terminal of the lightning protection circuit；
One end of second varistor is connect with the input terminal of the lightning protection circuit, second varistor it is another
One end is connect with one end of the second lightning protection component, the other end of the second lightning protection component and lightning protection electricity
The input terminal on road connects；
One end of the third varistor is connect with the other end of the fuse, the other end of the third lightning protection component
It is connect with one end of the third varistor, the other end of the third lightning protection component is defeated with the lightning protection circuit
Enter end connection.
3. lightning protection circuit as claimed in claim 1 or 2, which is characterized in that the lightning protection component is gas discharge
Pipe.
4. lightning protection circuit as claimed in claim 1 or 2, which is characterized in that the lightning protection component is Temperature protection
Silk.
5. lightning protection circuit as claimed in claim 4, which is characterized in that the Thermal Cutoffs is packaged in protected pressure
The shell of quick resistance is outer and fits closely with the shell.
6. a kind of power supply adaptor, which is characterized in that including lightning protection circuit and AC- as described in any one of claim 1 to 5
DC conversion module；
The lightning protection circuit input terminal is electrically connected with city, and the output end of the lightning protection circuit and the AC-DC are converted
The input terminal of module connects, and the output end of the AC-DC conversion module is connect with load equipment；
The lightning protection circuit is used for when lightning wave inputs the power supply adaptor, and limitation inputs the AC-DC modulus of conversion
The alternating current voltage of block；
The AC-DC conversion module is used to be converted in the alternating current of input direct current and the output of predeterminated voltage.
7. power supply adaptor as claimed in claim 6, which is characterized in that the AC-DC conversion module includes AC-DC rectified current
Road and DC-DC reduction voltage circuit with isolating transformer；
The output end of the lightning protection circuit is connect with the input terminal of the AC-DC rectification circuit, the AC-DC rectification circuit
Output end connect with the input terminal of the DC-DC reduction voltage circuit with isolating transformer；
The AC-DC rectification circuit exports high voltage direct current to the band and is isolated for converting to the alternating current of input
The DC-DC reduction voltage circuit of transformer；
The DC-DC reduction voltage circuit with isolating transformer exports default electricity for converting to the high voltage direct current
The low-voltage DC of pressure.
8. power supply adaptor as claimed in claim 7, which is characterized in that the AC-DC conversion module further includes output voltage
Control circuit；
The output end of the input terminal of the output voltage controlling circuit and the DC-DC reduction voltage circuit with isolating transformer connects
It connects；
The output voltage controlling circuit is used for when fluctuation occurs for the DC voltage of input or load changes, will be described
The voltage stabilization of low-voltage DC is preset value and exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821830144.XU CN209217711U (en) | 2018-11-06 | 2018-11-06 | A kind of lightning protection circuit and power supply adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821830144.XU CN209217711U (en) | 2018-11-06 | 2018-11-06 | A kind of lightning protection circuit and power supply adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209217711U true CN209217711U (en) | 2019-08-06 |
Family
ID=67458640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821830144.XU Active CN209217711U (en) | 2018-11-06 | 2018-11-06 | A kind of lightning protection circuit and power supply adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209217711U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086950A (en) * | 2020-09-17 | 2020-12-15 | 深圳科安达电子科技股份有限公司 | Track circuit lightning protection system |
| CN113097987A (en) * | 2021-04-09 | 2021-07-09 | 华为技术有限公司 | Lightning protection device and photovoltaic power generation system |
| CN114189161A (en) * | 2021-12-17 | 2022-03-15 | 东莞市迈思普电子有限公司 | Guide rail power adapter with high lightning protection grade capable of serving as lightning protector |
-
2018
- 2018-11-06 CN CN201821830144.XU patent/CN209217711U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086950A (en) * | 2020-09-17 | 2020-12-15 | 深圳科安达电子科技股份有限公司 | Track circuit lightning protection system |
| CN112086950B (en) * | 2020-09-17 | 2023-08-25 | 深圳科安达电子科技股份有限公司 | Track circuit lightning protection system |
| CN113097987A (en) * | 2021-04-09 | 2021-07-09 | 华为技术有限公司 | Lightning protection device and photovoltaic power generation system |
| US11855449B2 (en) | 2021-04-09 | 2023-12-26 | Huawei Digital Power Technologies Co., Ltd. | Lightning protection apparatus and photovoltaic power generation system |
| CN114189161A (en) * | 2021-12-17 | 2022-03-15 | 东莞市迈思普电子有限公司 | Guide rail power adapter with high lightning protection grade capable of serving as lightning protector |
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Effective date of registration: 20220608 Address after: Floor 12-17, unit 1, building 2, No. 466, Xinyu Road, high tech Zone, Chengdu, Sichuan 610000 Patentee after: Chengdu Lianzhou International Technology Co.,Ltd. Address before: 518000 the 1st and 3rd floors of the south section of building 24 and the 1st-4th floor of the north section of building 28, Shennan Road Science and Technology Park, Nanshan District, Shenzhen City, Guangdong Province Patentee before: TP-LINK TECHNOLOGIES Co.,Ltd. |